Handheld backscatter imager



FIG. 1 is a front perspective view of a handheld backscatter imager according to the present design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is a rear perspective view thereof.

The broken lines in the drawing views are included for the purpose of illustrating portions of the handheld backscatter imager that form no part of the claimed design. 

CLAIM The ornamental design for a handheld backscatter imager, as shown and described. 